Explain how to find 45% of a number.

A. Multiply the number by 0.45.
B. Divide the number by 4.5.
C. Divide the number by 45.
D. Multiply the number by 4.5.

nope,

you would multiply by .45

multiplying by 4.5 would be taking 450%

D. Multiply the number by 4.5.